Container



July 12, 1960 ulllllllll lll Jlfllll E. ARNESON 2,944,719

CONTAINER Filed Aug. 8, 1956 IN V EN TOR.

These panels are foldable outwardly and downwardly about the edge forming transverse score lines 19 and 39.

The side wall forming panels 18 and 19and the end wall forming panels 26 and 27 are integrally connected at their adjacentends by corner web forming portions 40 which are identical and only one of which will be described. Each of the web forming portions 40 is separated from the adjoining side and end walls by the score lines defining the ends of the same, for example, score lines 22 and 28. A diagonal score line 41 extends from the intersection of the score lines 22, 28 with the score lines 14, 17 to the outermost corner of the web 40. The score line 41 divides the web 40 into generally triangular As previously explained, the score line 28 is not in exact alignment transversely of the blank with the score line 14 but is inclined toward a transverse center line through the bottom wall forming panel13 so that the angle between the score line 41 and 28 is somewhat more than 45 degrees, preferably in the neighborhood of 47 degrees, while the angle between the score line 41 and the adjoining corner forming score line 22 of the side wall 18 is held at 45 degrees.

The blank is initially folded into the condition shown in Fig. 6. An adhesive is applied to one or both of the contacting faces of the side and bottom wall forming panels. The outer side Wall panel 36 is folded about score line 21 to provide with the inner side wall panel 18 a double side wall structure while the outer side wall and outer bottom wall panels 37 and 38 are folded about the score lines 21 and 39 into engagement with the bottom faces of the inner side wall and inner bottom wall panels 19 and 13, respectively, to form therewith double side wall and bottom wall structures. This leaves the blank inthe condition shown in Fig. 6 in which it may be supplied to the user for erection in a properly designed set up machine.

In erecting the carton from the blank as shown in Fig. 6, the side wall forming panels 18 and 19 are folded upwardly about the score lines 14 and into upright condition relative to the bottom wall forming panel 13 while the end wall forming panels 25 and 27 are folded into upright position about the score lines 16 and 17 with each of the corner connecting webs 40 being folded outwardly about the diagonal score lines 41 so that the web portions 43 and 44 form outwardly extending folded tab sections which are then folded inwardly about the score lines which connect the same with adjoining side and end wall forming panels to bring the inner web portions 43 into engagement with the outer faces of the inner end wall forming panels 26 and 27. Thereafter, an adhesive is applied, preferably in the form of a strip 42 or spot pattern to the inner faces of the outer end wall forming panels 32 and 33 which are then folded downwardly about the score lines 34 and 35, respectively, into engagement with the outer faces of the inner end wall forming panels 26 and 27 thereby entrapping or hiding the folded corner webs 49 between the two panels forming the double end walls of the carton. The difference in the angles between the diagonal score lines 41 and the adjoining corner forming fold lines together with the inward slant of the fold lines at the ends of the inner end wall forming panels 26 and 27 causes the ends of the side walls 18 and 19 to toe inwardly at the top thereof sufliciently to overcome any tendency to bulge outwardly. The inner fold portion 43 of each corner web 40 has a slightly larger dimension along its free edge than the outer fold portions 44 and there is a tendency when the web is folded upon itself for the inner fold portion 43 to buckle somewhat, particularly, if lightweight paperboard is used but the folds are flattened out when the outer end wall panel is folded down over the same and the difference in dimension is absorbed in the hinge areas which draws the end'portion of the side wall into snug engagement against the inwardly slanted end of the inner end wall panel. 7

- shaped portions 43 and 44 of slightly difierent dimensions;

While the illustrated container is in the form of an open topped tray, it will be appreciated that a cover unit may be provided for cooperation with the same either as a separate unit for telescoping therewith or hingedly connected along the top edge of one of the side or end walls with the, cover being either unlined or lined with metal foil or similar material.

I claim:

1. A container formed of a single blank of relatively flexible and bendable sheet material which is covered on one face with relatively thin aluminum foil, said container comprising, when erected, a foil lined tray-like member having a bottom, upstanding side walls which are integral with the side edges of said bottom and upstanding end walls, said walls all having an inner panel with the side and end wall panels being integrally connected to the periphery of the bottom wall panel, each of the side and end walls having an outwardly and downwardly folded outer panel, the outer side and end wallpanels being hingedly connected along the top forming edges thereof to the top edges of the respective inner side and end wall panels, corner portions connecting the inner side and end wall panels, each of said corner portions being integrally hinged to the vertical corner forming edges of the adjacent inner side and end wall panels,

saidcorner portions each having a diagonal fold line on.

which it is folded and each of said corner portions being foldedinto engagement with the outer face of the inner end wall panel to conceal the same between the inner and outer end wall panels, with the angle formed between the said diagonal fold line and the adjoining end edge of the side wall being 45 degrees and the angle between said diagonal fold line and the end edge of the end wall being greater than 45 degrees whereby the side walls are toed in at their connection with the end walls, and said bottom wall having an outer panel which is integral with one of said outer side wall panels.

2. A container unit formed of a blank of relatively flexible and bendable sheet material, said container unit being characterized in its erected condition by a bottom, and opposed upstanding side and end walls which are integral with the side and end edges of said bottom, said end walls each having an inner panel hinged to the end edge of said bottom, and an outer panel hingedly connected along the top edge thereof to the top edge of the inner panel, said inner end wall panel having its end edges tapered inwardly of the side wall and upwardly from the bottom wall, and corner web portions each hinged to the vertically extending end edges of theadjacent inner side wall and end wall panels, each of said corner web portions being folded upon itself on a diagonal fold line which extends outwardly of the intersection of the hinge lines between the side and end walls and the bottom, and said corner web portions each being folded into a concealed position between the inner and outer end wall panels with the angle formed between the said diagonal fold line and the adjoining end edge of the inner end wall panel being in the neighborhood of 47 degrees and the angle between said diagonal fold line and the adjoining end edge of the side wall being 45 degrees whereby the side Walls are toed in toward the top of a the container.

3. A container formed of a blank of relatively flexible tively thin metal foil attached to one surface thereof, said container comprising, when erected, a tray having a bottom and upstanding peripheral side walls which are integral with the peripheral edges of said bottom, said side walls being in oppositely disposed paired relation and each having an inner panel integral with the side edge of said bottom, and an outer panel hingedly connected along the top edge thereof to the top edge of the inner panel, and corner connecting portions between the ends of each two adjacent side walls which are integrally hinged to the adjacent end edges of 'the inner side wall panels, saidcorner connecting portions each being di- I 5 vided into two generaily triangular sections by a diagonal hinge line on which said triangular sections are folded, and the corner connecting portions at the opposite-ends of each of a pair of opposedside walls being folded about their hinged connection with the intervening side wall into a concealed position between the inner and outer panels of said'intervening side wall, the angle formed'between the diagonal fold line of each corner connecting portion and the adjoining end edge of the inner panel of said intervening side Wall being greater than 45 degrees and the other one of said angles being 45 degrees, whereby' the side walls adjacent said intervening side wall are toed in toward the center of said intervening side wall.

References Cited in the file of this patent [UNITED STATES PATENTS Burton Dec. 23,

' Helfr'ich June 17, Bergstein Sept. 12, Goodnow Feb. 13, Cage Feb. 6,' Mulnix Aug. 12, Berry Nov. 23, Buttery Ian. 31,

FOREIGN PATENTS Netherlands July 15, France Aug. 8, 

